6510/65816 Addressing mode: Relative -- r
(BCC,BCS,BEQ,BMI,BNE,BPL,BRA,BVC,BVS)
(2 bytes) (2,3 and 4 cycles)
+---------------+------------------+-----------------------+----------+
| Cycle | Address Bus | Data Bus |Read/Write|
+---------------+------------------+-----------------------+----------+
| 1 | PBR,PC | Op Code | R |
| 2 | PBR,PC+1 | Offset | R |
| (5) 2a | PBR,PC+2 | Internal Operation | R |
| (6) 2b | PBR,PC+2+OFF | Internal Operation | R |
| 1 | PBR,NewPC | New Op Code | R |
+---------------+------------------+-----------------------+----------+
(5) Add 1 cycle if branch is taken.
(6) Add 1 cycle if branch is taken across page boundaries in 6502
emulation mode (E=1).
See also: Abbreviations